linuxidc@LINUXIDC11> create table seg_test( x int primary key, y varchar2(20));
Table created.
linuxidc@LINUXIDC11> select owner,header_file,header_block,bytes,blocks,extents from dba_segments where segment_name = "SEG_TEST";
no rows selected ---没有初始化是数据, 所以还没有段
linuxidc@LINUXIDC11> insert into seg_test values(1,"linuxidc");
1 row created.
linuxidc@LINUXIDC11> commit;
Commit complete.
linuxidc@LINUXIDC11> select owner,header_file,header_block,bytes,blocks,extents from dba_segments where segment_name = "SEG_TEST";
OWNER HEADER_FILE HEADER_BLOCK BYTES BLOCKS EXTENTS
------------------------------ ----------- ------------ ---------- ---------- ----------
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